plz i need stock rom for samsung SCH-970 any version – samsung , help please hardware strange problem

hi.. friends. i want ur to be helped. i tried to flash firmware by odin. i cannot flash firmware.. because geting auth error. from samsung site. i want stock rom in zip format. i have cmw recovery also.. or Please any one send cmw recovery backup file. only system file. Please urjent. i really thank full to u. Please send a link to download.